Preheat the air fryer. Set it to 390°F (200°C) for 3–5 minutes. A hot basket helps crisp the exterior right away.
Pat the fish dry. Use paper towels to remove surface moisture.
Dry fish equals better browning and less sticking.
Mix the spice rub. In a small bowl, combine paprika, cumin, coriander, garlic powder, onion powder, cayenne, salt, and black pepper. Stir in lemon zest.
Oil and season. Rub the snapper with olive oil, then sprinkle the spice mix evenly on both sides. Press lightly so it adheres.
Finish with a quick squeeze of lemon juice.
Prep the basket. Lightly brush or spray the air fryer basket with oil to minimize sticking. If your fillets have skin, place them skin-side down.
Air fry. Cook at 390°F (200°C) for 7–10 minutes, depending on thickness. Thinner fillets may be ready at 7 minutes; thicker pieces may take up to 10.
Avoid flipping unless the fillets are very thick and not skin-on.
Check for doneness. The fish should flake easily with a fork and be opaque throughout. Internal temperature should reach 145°F (63°C) at the thickest part.
Rest and garnish. Let the snapper sit for 2 minutes. Sprinkle with chopped herbs and serve with lemon wedges.